kwin/effects/blur.h
Rivo Laks 72f2d412c1 Add blur effect.
Blur effects blurs out background of translucent windows, thus improving e.g. readability of text in
  such windows.
I'll send a mail with couple of screenshots and more details to kwin list soon.

svn path=/branches/work/kwin_composite/; revision=658817
2007-04-28 15:13:28 +00:00

67 lines
1.7 KiB
C++

/*****************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2007 Rivo Laks <rivolaks@hot.ee>
You can Freely distribute this program under the GNU General Public
License. See the file "COPYING" for the exact licensing terms.
******************************************************************/
#ifndef KWIN_BLUR_H
#define KWIN_BLUR_H
// Include with base class for effects.
#include <kwineffects.h>
template< class T > class QVector;
namespace KWin
{
class GLRenderTarget;
class GLTexture;
class GLShader;
/**
* Blurs the background of translucent windows
**/
class BlurEffect : public Effect
{
public:
BlurEffect();
~BlurEffect();
virtual void prePaintScreen( int* mask, QRegion* region, int time );
virtual void prePaintWindow( EffectWindow* w, int* mask, QRegion* paint, QRegion* clip, int time );
virtual void paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data );
static bool supported();
protected:
bool loadData();
GLShader* loadShader(const QString& name);
void updateBlurTexture(const QVector<QRect>& rects);
void updateBlurTexture(const QRegion& region);
private:
GLTexture* mSceneTexture;
GLTexture* mTmpTexture;
GLTexture* mBlurTexture;
GLRenderTarget* mSceneTarget;
GLRenderTarget* mTmpTarget;
GLRenderTarget* mBlurTarget;
GLShader* mBlurShader;
GLShader* mWindowShader;
bool mValid;
int mBlurRadius;
int mTransparentWindows;
int mTime;
};
} // namespace
#endif